Nannotax3 - ntax_cenozoic - Nannolith genera inc sed <title>Nannotax3 - ntax_cenozoic - Nannolith genera inc sed

Nannolith genera inc sed

Classification: ntax_cenozoic -> Nannolith families inc sed -> Nannolith genera inc sed
Sister taxa: Ceratolithaceae, Lapideacassaceae, Lithostromationaceae, Nannolith genera inc sed, Rhomboasteraceae

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
extant genera
Nannoliths are tetrads of spines - “caltrops”. Cells monomorphic, saddle-shaped, with long flagella and haptonema. 
Ericiolus frigidus
Ericiolus sp. Y
Ericiolus spiculiger
Ericiolus sp.

Coccoliths formed of single angular calcite unti, coccospheres flower-like
Florisphaera profunda
Florisphaera sp.

Coccosphere formed of a few cap-shaped nannoliths
Pileolosphaera longistirpes

Nannoliths triradiate. Cells monomorphic.
Mercedesia aspiphora
Mercedesia multistellata
Mercedesia pusilla

Extinct genera
Small to medium pentagonal liths, with narrow rim and granular central area plate. Dark image in LM.
Goniolithus fluckigeri
Goniolithus sp.


Nannoturba joceliniae
Nannoturba jolotteana
Nannoturba robusta
Nannoturba spinosa
Nannoturba sp.

Nannoliths kite-shaped plates with raised margin on both sides
Minylitha convallis
Minylitha cancellata
Minylitha sp.

Unidentified nannoliths


Citation: Nannolith genera incertae sedis
Rank: informal group of genera

Distinguishing features:
Parent taxon (Nannolith families inc sed): Haptophytes forming calcareous structures not obviously homologous with heterococcoliths, holococcoliths, or discoasteralids
This taxon: Three apparently unique genera, not-included in described families

Farinacci & Howe catalog pages: Nannolith genera inc sed [no catalog entry yet]



Ecology & Biogeography

Biology & life-cycles

Phylogenetic relations

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): at base of Coniacian Stage (0% up, 89.8Ma, in Turonian stage). Data source: Total of range of species in this database

Plot of occurrence data:



Nannolith genera inc sed compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-2-2023

Taxon Search:
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AphiaID: not found
Short stable page link: Go to to create a permanent copy of this page - citation notes

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